Steam-boiler.



PATENTED FEB. 13, 1906.

3 SHEETS-SHEET 1.

i L) s l I uvenloz f Joh/1, 55C/ladder J. C. SCHNEIDER.

STEAM BOILER.

APPLICATION HLED JULY 2s, 190s.

' No. 812,685.' PATENTED EEB.13,1906.

J. c. SCHNEIDER.

STEAM EOILEE.

APPLICATION lLED JULY 28, 1906.

3 SHEETS-SHBET 2.

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PATBNTBD FEB. 1s, 1906,.

J. C. SCHNEIDER.

STEAM BOILBR. APPLIGATION FILED JULY 28, 1905.

3 SHEETS-SHEET 3.

wibnesow UNITED STATES PATENT oEErcE.

Specification of Letters Patent.

PatentedFeb. 13, 1906.

Application filed July 28, 1905. Serial No. 271,665.

To a/ZZ whom, it may con/cern:

Re it known that I, JOHN O. SCHNEIDER, a citizen of the United States,residing at Winona, in the county of Winona and State of Minnesota, haveinvented certain new and useful Improvements in Steam-Boilers; and I dohereby declare the following to be a full, clear, and exact descrip tionof the invention, such as will enable othersskilled in the art to whichit appertains to make and use the same.

In Letters Patent N o. 784,894, issued to me March 15, 1905, there isshown, described, and claimed a steam-boiler having waterjacketed sidewalls composed oftwo corrugated sheets and communicating with the aboiler proper, which may be of the tubular or other type and with uppersteam-drums and lower drums for the accumulation of sediment.

My present invention is an improvement upon the patented constructionabove referred to 3 and it consists of a steam-boiler having upper andlower drums connected by a plurality of tubes to afford communicationbetween them, and which tubes are also connected for communication withthe boiler proper, whereby the cost of construction is materiallydecreased.

The invention in detail is set forth in the following description, andillustrated in the accompanying drawings, in which- Figure 1 is a topplan view of a steam-boiler embodying my invention. Fig. 2 is a verticallongitudinal sectional view of the same, taken on line 2 2 of Fig. 1.Fig. 3 is a front elevation of the same, partly in section. Fig. 4 is arear elevation of the same, partly in section.

Referring to the drawings by numerals, 1

denotes the boiler proper, which may be of the usual fire-tube typeshown or of other type. At each side of the boiler 1 is a steamdrum 2,equipped with inspection and scrap- .ing openings, at which are suitableclosures,

and below each steam-drum and in approximate vertical alinementtherewith is a sediment or mud drum 3, supported on a base 4, of masonryor the like. The mud-drums are similarly equipped with inspection andscraping openings and with closures therefor. Oonnecting each steam-drumand the corresponding mud-drum are tubes 5 5, approximately verticallydisposed and opening into said drums, whereby to establish communicationand to obtain a circulation of the contained water. Preferably an innerandan outer set or series of tubes are provided, one or more of theinner tubes communicating with the boiler 1 through a connecting pipe orpipes 6. The mud-drums intercommunicate through the medium of across-connection 7, which latter communicates with theboiler 1 through atube 8. Likewise, also, 'the steam-I drums communicate with each otherand with the boiler 1 through a cross connection 9 and a central tube10. The drums and connecting-tubes are interchangeable to bring theouter series of tubes innermost in the event of wear by heat, whereby toprolong the period of usefulness of the boiler.

I claim as my invention- In a steam-boiler, the combination of theboiler proper, of side walls therefor each consisting of a lowermud-drum, an upper steamdrum in substantially vertical alinement Withthe mud-drum, and a plurality of substantially vertically disposed tubesconnecting the steam and mud drums throughout the lengths of the latter,a transversely-disposed tube connecting the steam-drums and incommunication intermediately with the upper portion of the boiler, and atransversely-disposed tube connecting the mud-drums and in communicationintermediately with the lower portion of the boiler.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN O. SCHNEIDER. Witnesses:

, D. E. TAWNEY, W. J. SMITH.

